Machine for marking shoe-uppers.



A; W. BRlCE & I. E. BOOTH. MACHINE FOR MARKING SHOE UPPERS.

APPLICATION FILED APR. 19. 1916.

1,278,842. PatentedSept. 17,1918.

- 6 SHEETS-SHEET I A. w. BRICE stv I. E. Boom.

MACHINE FOR MARKING SHOE UPPERS.

APPLICATION FILED APR. 19. I916.

Patented Sept. 17,1918.

' 6 SHEETS-SHEET 2.

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mu. nv c A. W. BRICE & I. E. BOOTH.

MACHINE FUR MARKING SHOE UPPERS.

APPLICATION FILED APR'. I9. 1916- ,1',278,842. Patented Sept. 17,1918.

6 SHEETS-SHEET 3- A. W. BRICE & l. E. BOOTH.

MACHINE FOR MARKING SHOE UPPERS.

APPLICATION FILED APR. 19. I916.

Patented Sept. 17,1918.

6 SHEETS-SHEET 4.

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A. W. BRICE & l. E. BOOTH.

MACHINE FOR MARKING SHOE UPPERS,

' I APPLlCATION FILED APR. 19. 1916. 1,278,842.

Patented Sept. 17, 1918.

6 SHEETS+SHEET 5.

0.4 WASrulvamN. n. c.

A, W. BRIGE & I. E. BOOTH. MACHINE FOR MARKING SHOE UPPERS,

APPLICATION FILED APR. I9. 1916.

1,278,842. Patented Sept. 17,1918.

9 6 SHEETS-SHEET 6.

If! L nn-Pix UNITED STATES PATENT orrion.

ARTHUR W. BRICE AND IRVING E. BOOTH, OF ROCHESTER, NEW YORK, ASSIGNORS,BY

MESNE ASSIGNMENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON,

NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR MARKING SHOE-UPPERS.

Specification of Letters Patent.

Patented Sept. 17, 1918,

Application filed April 19, 1916. Serial No. 92,296.

To all whom it may concern:

Be it known that we, ARTHUR W. BRICE and IRVING E. Boorr-r, citizens ofthe United States, residin at Rochester, in the county of Monroe andState of New York, have invented certain Improvements in Machines forMarking Shoe-Uppers, of which the following description, in connectionwith the accompanying drawings, is a specification, like referencecharacters on the drawings indicating like parts in the several figures.

This invention relates to machines for marking Shoe uppers and, moreparticularly, to machines for placing indication marks upon the materialto designate locations for subsequent operations. The invention may beemployed with particular advantage in marking buttonhole locations onshoe upper material and accordingly will be discussed particularly fromthis stand point although, obviously as to its more general features, ithas a broader field of application.

Buttonhole marking, as heretofore pro posed and practised, has beenaccomplished by machines or by hand tools operating to mark the locationof buttonholes or buttons on the shoe material by piercing, indenting orembossing the stock or by marking with ink or other color medium such ascrayon or chalk.

Piercing, indenting and embossing are inadequate to accomplish thepurpose, particularly with soft leather and cloth which is of a spongyand resilient nature, for the indication so formed disappears within arelatively short time after the material has been marked.

Then ink is used on leather uppers it is readily blurred or smeared bythe handling incidental to the work on the shoe before the buttonholesare to be made. With cloth up per material. there is not only theprobability that the ink will be smeared but there is grave dan 'er ofthe ink spreading and injuring the appearance of the upper. Chalk orcrayon and similar color mediums of'a dry nature are obviously liable toblur or rub off with-the handling incidental to the manufacturingoperation.

A marking method which insures a permanent dry indication mark alwaysclearly discernible by contrast with the adjacent surface of the stockoperated upon, is practised by the machine disclosed in United StatesLetters Patent No. 1,198,462, issued September 19, 1916, on anapplication filed by Richard L. Lloyd and Robert D. Simpson, for amachine for marking buttonhole flies. As practised according to theLloyd and Simpson invention, the buttonhole locations are marked uponthe shoe upper material by cauterizing the surface of the material atthe desired points by means of electrically heated cauterizing markers.

The present invention provides novel and improved mechanism especiallydesigned, without sacrifice of general utility, to be incorporated in amachine of the type set forth in said Letters Patent.

A conspicuous feature of the invention is found in the combination of amarker element and an electric heating circuit, with means constructedand arranged electrically to heat said element to a normal cauterizingtemperature and automatically to increase the heat of the marker so thatthe marker will be heated to a higher temperature during engagement withthe work. Preferably, and as a related feature of the invention, theheat is increased prior to engagement of the marker with the stock. Thisinsures asubstantially increased cauterizing temperature at the initialcontact of marker and material.

A further feature of the invention consists, in combination with thecauterizing marker element, of current controlling means constructed andarranged for adjustment to provide varying normal and momentarilyincreased cauterizing temperatures for the marker element. Thecauterizing points of different shoe upper materials will vary and meansfor correspondingly varying the heated condition of the markers of themarker elements is a desideratum. A related feature of the inventionconsists, in combination with the current controlling means, of a seriesof markers carried by a series of marking members, and electricallyconnected in series.

The advantage of increasing the heat point of the marking medium lies inthe fact that the heat point of the marking medium is lowered by thecauterizing action, and compensation for the heat loss by momentarilyincreasing the heat point of the marking medium through additionalheating current, not only insures a clear cut sharply contrastingindication mark with a minimum period of contact, but in additionprolongs the life of the resistance material of the marker element bymaintaining the material at a lower heat point when not in contact withthe stock. 7

Another feature of our invention consists in a construction of markingdevice providing a supporting arm with electrical connections andterminal contacts, and a cauterizing head arranged to be detachablysecured to the arm and including a length of resistance material formingthe cauterizing marker and arranged for eleCtrical connection with thearm terminal contacts when the head is secured to the arni. A. relatedfeature consists in providing, in the recited combination, a length ofresistance material arranged for detachable connection with thecauterizing head and having portions arranged for circuit completingcontact with the arm terminal contacts. Such an arrangement is obviouslyadvantageous in that it provides for ready attachment and replacem'entof the cauterizingmarkers and in addition locates that portion of theelectrical circuit of the arm which is more readily burned out at aneasily accessible point. The cauterizing markers can thereby be readilyreplaced and attached afterthe'analogy of electric bulbs in theirsockets and the time and expense of replacement is minimized.

A further feature of the invention consists in a construction of markingdevice comprising opposedrelatively movable arms carryingopposed markerelements of resistance 'material arranged simultaneously to engageopposite faces of the stock upon relative movement of the arms therebyproviding means for marking simultaneously a plu rality of pieces ofstock. A related feature consists in a plurality ofsuch marking deviceswith series electrical connections for the markers. The describedconstruction is particularly useful for marking buttonhole locations onshoe flies since it enables the right and left fly of the sameshoe to besuperposed and marked on similar sides in one marking operation. Arelated feature of the invention consists in a construction of markingdevice providing opposed relatively movable arms carrying opposedcauterizing markers with means to support the upper material between themarkers and to prevent contact of the heated markers with the materialuntil the arms are relatively moved to efiect cauterization. V

' Another feature of our invention consists in the construction ofmarking device and support providing means for efiecting sliding andswinging adjustment of the marker. 7 A further feature consists in amarking device having a hollow marking arm with a marking element ofresistance material at one end of the arm and with electrical conductorsextending through the arm to the marking element and insulated from thearm and from each other. This construction is advantageous in that theconnections are protected from accidental injury and short 7 circuitingthrough abrasion and displacetailed description read in connection withthe accompanying drawings in which,

Figure l is a top plan View of a buttonhole marking machine equippedwith a series of marking devices constructed and arranged to beelectrically heated to cauterizing temperature in accordance with ourinvention; A

Fig. 2 is a plan view of the mechanism for driving the machine and foroperating the automatic resistance cut-out switch for the rheostat; r

Fig. 3' is a perspective view of one of the electrically heatedmarkingdevices in position on the machine bed; 7

Fig. 4 is a longitudinal section through the marking device shown inFig. 3';

Fig. 5 is a detail of a cauterizing head and the cooperating markerparts;

Fig. 6'is a plan view of a rheostatfor controlling the heating circuitforthe cauterizin marking elements, the casing being removed;

Fig. 7 is a fragmentary view of the casing top showing the resistanceand cut-out adjusting handles with their indicator dials, and r Fig. 8is a diagrammatic view showing the heating circuits with the currentdistribution and'control.

A suitable bed 2 is provided with up wardly extending posts 4- uponwhich an operating head 6 isguided for vertical reciprocating movementtoward and from the sleeve 14 having at one end an annular clutch disk16. A gear 18 is loosely journaled on the shaft 8 adjacent theclutchdisk 16 and is provided with a cooperating clutch face.

The inner face of the sleeve 14 is formed at diametrically oppositepoints with radially offset depressions, and rollers 22, 24 carried byand extending from the adjacent face of the machine bed are positionedto cooperate with and seat in these depressions. A coiled spring 26 isinterposed between the gear 18 and the sleeve 14 and normally tends toforce the sleeve in the direction of the rollers 22, 24 so as to holdthe clutch disk 16 out of clutching engagement with the adjacent face ofthe gear 18.

The gear 18 is continuously driven by means of an intermeshing gear 28mounted on a counter shaft 30 which carries a pulley 32 continuouslydriven through belt 34 from a suitable power source such as an electricmotor 36. This motor and its circuit may be omitted, however, and thepulley 32 may be driven directly from a line shaft or other power sourceif desired.

lVhen the shaft 8 and the operating head of the machine are at rest, therollers 22, 24 will be seated in the depressions of the clutch .sleevewith the clutch disk 16 out of clutching engagement with the gear 18.The shaft 8 may be given a single revolution and automatically stoppedat the end of that revolution by throwing the clutch sleeve 14 intoengagement with the rotating gear 18 whereupon the sleeve will berotated to move the depressions past the rollers 22, 24 which willengage the relatively higher face of the sleeve and hold the sleeve inclutching en gagement with the gear 18 until the depres sions are againalined with their respective rollers. The coiled spring 26 (Fig. 2) willthen force the clutch sleeve out of clutching engagement with the gearand the machine will be stopped with the operating head 6 at the limitof its upward movement. To move the clutch sleeve into engagement withgear 18, a sleeve 88 is loosely j ournaled on the shaft 8 adjacent tothe inner edge of the clutch sleeve 14 and carries an upstanding arm 40.A finger 44 having a beveled edge is secured to arm by the bolt 42 so asto lie in the plane of a stud 46 extending upwardly from the peripheryof the sleeve. A coiled spring 48 is connected at one end to the machinebed and at its other end to the arm 40 and normally tends to pull thearm outwardly toward the front of the machine so that the beveled finger44 is out of contact with the stud 46. I

An offset 50 extends from the arm 40 rearwardly of the machine bed andis apertured at its rear end to receive the upper end of a treadleconnected rod 52. Then a suitably connected treadle (not shown) isoperated to depress the rod, the sleeve 88 will be turned to bring thebeveled edge of finger 44 against the sleeve stud 46 to force saidsleeve with its clutch disk 16 into engagement with the clutch face ofthe gear 18. The sleeve 14 will be rotated to move the depressions pastthe rollers 22, 24 which will thereupon operate to hold the sleeveclutch in driving connection with the gear 18 for one revolution of theshaft 8, as hereinbefore described. After the initial clutching actionoccurs the treadle may be released and the spring 48 will retract thearm 40 to its'normally inoperative position.

The rotation of the shaft will move the operating head 6 verticallydownward toward the machine bed and then return it vertically upward tonormal inoperative po' sition. Downward movement of the operating headengages simultaneously upper arms of a series of pivotally connectedpairs of arms forming the marking devices and serves to effect relativemovement between the upper and lower arms of the series of devices tomark work supported between the arms.

At the rear of the bed, the flanged heads of a series of studs 54 form acurved line. The bed of the machine in the line of these studs is formedwith a raised bearing surface 56 and with a second raised bearingsurface 58 (Fig. 8) similarly curved and spaced from the first bearingsurface in the direction of the front of the machine bed. These bearingsurfaces act as supports for the series of marking elements.

The pairs of arms forming the marking devices each include opposedelectrically heated cauterizing markers and as illustrated areelectrically connected in series. structurally, they are duplicates, andaccordingly, for the purposes of the present specification, only onedevice need be described in detail.

Each device includes a lower arm 60 mounted at its rear end on a base 62including a channeled base plate 64 resting on the bearing surface 56and engaging the flanged head of a stud 54 for swinging movement aboutsaid stud as a pivot and for sliding movement relatively to the stud.The forward end of the lower arm is carried in a frame 66, the rearportion of which normally rests upon the bearing surface 58 and isprovided with an upwardly extending adjustable stop screw 68 to limitthe movement of the upper arm toward the lower arm.

Intermediate of its ends the frame 66 is provided with a rib 70 and witha wire guard 72 extending forwarc ly therefrom to a point beyond andbelow the cauterizing wire marker of the upper arm, as hereinafter seen.The forward end of the frame detachably carries a post 74 upon which ispivoted a combined work supporting table and guard 7 6 at a pointadjacent to its forward end, the rear end of the table being bifurcatedto embrace the rib 70. This table acts as a support for the material tobe marked and as a guard for the marker wire 7 end of the base. 62 ofthe lower arm.

7 to separate the forward ends of these arms.

At a pdint in line with the stop screw 68 of the lower arm, the upperarm is provided at its under side with a sleeve 8% having an abutment 86to engage the stop screw, and at its upper side with an anvil 88including a spring pressed contact plug 90 to cushion the impact of theoperating head 6 against the anvil.

In line with the rib 7 0 of the lower arm,

the upper arm is provided with depending spaced legs 92 embracing therib and havlng their forward edges notched loosely to receive thebifurcated ends of the table 76. The action of the spring 82 normallytends to move the forward end of the upper arm upwardly to cause thelegs 92 to swing the rear bifurcated ends of the table 76 upwardly, soas to position said table above the upper end of the lower marker wire.A stop pin 94 projects from the rib 7 0 to limit the upward movement ofthis end of the table. 7 Forwardly of the rib and rearwardly of the endsof the arms, certain and centrally located tables 76 of the series oftables are provided with work edge gages in the form of angle plates 96(Fig. 4) having slotted arms resting upon the table and adjustablysecured thereto. 7

The series of marking devices or units are mounted for adjustment tovary their spacing and curvilinear arrangement. Adjust ing mechanism ofsuitable construction may be used in cooperation with the units andtheir related parts. Accordingly, at the end of the lower marking arm,the frame 66 is provided with a guide pin 98, a portion of the pinprojecting above the frame anda longer portion projecting below theframe for engagement with certain adjusting mechanism, hereinafterdescribed and shown, generally, in Fig. 1 of the drawings.

The electric equipment of each arm of the series of upper and lowerarms, is identical and, accordingly, a description of the specific COllSGXLlClTlUH of one arm only need be given. This construction is shownparticularly in Fig. of the drawings. Each of the upper and lower arms60, 78 is in the form of a tube open at both ends. The elecricconnections enter at the rear of the tube, extend therethrough andconnectat the "t l 'tl' lt bl t 11011 enc vv1 1 a ceuacna c cauteimmmarker head. Accordingly, taking the upper arm 78 shown in Figs. 41- and5 as typi-, cal, it will be seen that in all the arms the through whicrear of the arm is closed by a plug 100 of insulating material having anannular flange seating within the open rear end of the tube. This plugis centrally aperture-d to receive an interiorly threaded flanged sleeve102 into and through which extends the rear threaded end ofa conductorrod 104. The rear face of theplug 100 is recessed to receive aconnectorclip 106 seating against the flange of the sleeve 102 and overthe rear threaded endof the rod 104:. This clip is attached to the. endof an in sulated conducting wire 108 extending from the rear end of thelower arm of the next adjacent marking device (see Fig. 3) of the seriesand leading the current into the upper arm. The clip is held in contactwith the sleeve and with the threaded end ofthe conductor rod 104 bymeans of a cap 110 of insulating material having a centrally disposedand interiorily threaded sleeve 112 screwing over the end of the rod 104and against the clip. The plug 100, opposite the connector ch 106, isformed with a bore an insulated conductor wire 114 extends, this wireleading the current from the cauterizingelement of the upper arm to thecauterizing element of the lower arm. Wire 114; and the conductor rod10a are insulated from each other and form the positive and negativeconnections for the resistance element or cauterizing marker at theforward end of the arm. 7 r

Y The forward open end of the tube forming the upper arm is closedby aflanged plug 116 of insulating material, centrally apertured to enablethe forward end of the rod 104: toex- -tend therethrough, and havingitsouter face recessed to receive a contact ring 118 having I a flangeseating at the base of the recess. The insulated wire 114.- extendsthrough the tube to the plug 116 and from this point the wire,preferably with its insulating cover-.

' rod 10 1 which extends therethrough. Preferably a washer 119 ofinsulating material is mounted on the rod within the ring to prevent therod from engaging the ring flange. (See Fig. 1). The plug 116 carries adowel pin, and a burner head in the form of a plug 120 of insulatingmaterial is formed with an aperture extending therethrough to receivethe dowel pin so as to properly position the head relatively to the plugand to the electric connections projecting therefrom. The plug 120 iscentrally apertured to permit the threaded end of the conductor rod 104:to extend therethrough Without contacting with the burner head. Theopposite faces of the plug 120 are recessed to'receive contact plates122, 124 centrally apertured to permit the end of the rod 104 to extendtherethrough without contact. To the lower end of the clips 122, 124 onthe upper marker arms (and to the upper ends of the corresponding clipson the lower marking arms) is electrically connected by soldering, orotherwise, a loop 126 of relatively fine wire which is shaped at itslower or contact end to form a marking surface of desiredconfiguration,in the present case, a short relatively thin line todenote the buttonhole location.

The contact plates 122, 124 with their connected cauterizing wire loop126 form in effect a sprin'gclip which is detachably carried by theburner head 120 and which may be readily inserted in and removed fromthe burner head. The dowel aperture into the burner head extendsentirely through the head and as the construction of the contact plates122, 124, is identical, either contact plate may be at the inside of theinsulating head and either face of the insulating head may be connectedwith the dowel pin of the plug 116.

When the burner head 120 with its contact plates 122, 124 and connectedcauter izing wire loop is seated over the threaded outer end of the rod104, the inner contact plate 122 or 124, as the case may be, will engagewith the edge of the contact ring 118 which is connected with theleadingout wire 114. The extreme outer end of the rod will projectbeyond the burner head and will thread into a contact sleeve 128 carriedwithin an insulated clamping nut 130, so that when the nut is screwedupon the outer end of the rod, its sleeve 128 will engage the outercontact plate 122, or 124 as the case may be, and will electricallyconnect the outer end of the rod 104, which forms the leading-inconductor, with said contact plate and will transmit the current throughthe cauterizing loop 126 of resistance wire to the opposite plate 122 or124.

From this opposite plate the current will flow through the contact ring118 and by wire 114 will be conducted from the upper marker arm to theintake side of the lower marker arm where it connects with similarconductors, contacts, cauterizing loop, etc., and from which the currentis led out by an insulated wire (corresponding to the wire 114) (Fig. 4)which extends from the lower arm of one unit (see wire 108, Fig. 3) tothe conductor rod of the upper arm of the next adjacent unit of theseries.

It will be seen from the foregoing that the cauterizing markers areelectrically connected in series, the leads from the current sourceconnecting with the opposite ends of these series (see Fig. 1). Beforedescribing the current distribution and control, we will refer brieflyto one form of marker element adjusting mechanism which may beadvantageously employed and which forms the subject matter of anapplication by William Hamann for machine for marking shoe uppers filedApril 8, 1916, Serial No. 89,968.

It will be remembered that the lower arm of each marking device or unitis provided with a guiding pin 98. This adjusting mechanism, asdisclosed in Fig. l of the drawings provides two complemental guideplates 134, 136 having their adjacent inner ends pivotallyinterconnected by means of the guide pin 98 of the central unit which isfixed against adjusting movement and relatively to which the other unitsare adjusted. These pivotally interconnected guide plates are providedwith complemental curved guide slots therein through which the guidingpins 98 project. These guiding pins below the guide plates 134, 136,enter into and engage the sides of divergent spacing slots 138 in areciprocating spacer plate 140. The outer ends of the pivoted. guideplates 134, 136 are provided with suitable adjustment levers genericallyindicated at 142 for swinging the guide plates to vary the line of theircurved guide slots. This adjusting movement will slide the units, orsome of the units relatively to their pivot studs to vary the line ofmarkers. When the spacer plate 140 is moved inwardly by suitable feedmechanism not illustrated specifically herein but which includes aspring motor drive and an escapement controlled by a hand-operatedspacing bar 143 (Fig. 1), the marker arms will be swung on their pivotstuds inwardly toward the central fixed marker arm and when the spacerplate is manually moved outwardly the reverse spacing movement takesplace.

lVith such adjusting mechanism co6perating with our series of markingdevices or units, the operation of the machine is as follows: Right andleft buttonhole flies of the same pattern and size are superposed. andare seated upon the series of tables 76 and the adjustment meansoperated until the markers have been properly positioned relatively tothe work. The treadle rod 52 is then actuated to operate the one cycleclutch to cause the head 6 to be moved downwardly to effect relativemovement between the opposed series of markers so as to bring thesemarkers into contact with the surface of the work, as heretoforedescribed, the parts being subsequently returned to inoperativepositions at the end of one revolution of shaft 8.

According to our invention, the series of cauterizing wire loops 126forming the markers, or marker elements, will be maintained at a uniformminimum heat during the times that the marker elements are in operative,or in other words, are not being moved into work engaging positions.This minimum heat will be regulated through a the wire loops. Unlessadditional heat is furnished for the actual marking operation, thenormal heat point will be lowered below the 'cauterizing point throughthe loss of heat due to the initial cauterization.

"We have therefore provided means for automatically increasing the heatof the burners just prior to and during the actual marking operation, sothat the loss of heat due to the burning action is, at least,compensated for, and the markers are maintained throughout the markingoperation, at a cauterizing temperature. For descriptive purposes, weuse direct current, the series of markers, electrically connected inseries, being included in a circuit containing a rheostat havingadjustable resistance, with a shunt circuit including connections to 'aresistance cut-out on the rheostat and an interposed switch normallyopen to break the shunt circuit but automatically closed by Figs. 6 and7 of the drawings and'includ'es a suitable casing 144 of circular formhaving an upper andlower (not shown) series of spaced grid bars 146between which a spiral coil of electrically resistant material issupported, the bars being suitably insulated from the coil. Thisresistance coil is preferably in the form of a spirally wound ribbon 147having a strip of insulating material, such as mica, wound between thedifferent coils of the ribbon. V

The casing 144 is provided withsuitable feet 148 by means of which itmay be secured to a desired support, and at one side is provided withservice current connectors 150, 152, and at the opposite side with heating circuit connections 154, 156, 158,160. The connections 150 and 154at opposite sides of the rheostat are directly connected by a suitablewire 16:2. From the outer end of the spiral resistance ribbon, as at164, a suitable wire 166 leads directly to the outlet connection 156.The service connection152 and the circuit connections 158, 160 are elec-1 trically connected with :certain resistance cut-out mechanism which wewill now describe.

Extending transversely of the casing 144 and centrally therethroughbetween and above spaced upper grid bars,-is a rock shaft 168, the endsof which terminate adjacent to the outer. edges of the. rheostat frameand. r

are carried in suitable journals 170. These journals are themselvessupported by the ends of leaf spring arms 172 supported and extendingupwardly from 7 adjacent" grid bars 146. 'The arms 172 normally tend tomove the shaft in the direction of the edge of the resistance ribbonwhich is positioned below the shaft between the grid bars and the edgeofwhich is exposed for electric contact. 7 Q

/ Mounted on and lined to the shaft 168 are spaced sleeves 174 which,through the shaft, are in electric connection with the journals 170which in turn, are insulated from their supporting spring arms. Thesesleeves eX- tend to points slightly beyond the inner end of the spiralresistance ribbon, and carry complemental spiral contact ribs 17 6arranged for wiping contact with the ribbon edge and held in contactwith the exposed edge of the resistance ribbon by means of the springarms 172. Vhen the shaft'168 is rotated the contact points of thecomplemental spiral ribs 176 with the exposed edge of the coil will movesimultaneously and uniformly outward from the inner edge of the coil ofresistance ribbon. We employ preferably two separate contact ribs inorder to secure increased contact surface, although onegleeve andcontact rib can be used if desire r The shaft 168 at a central point hasclamped thereto and insulated therefrom a sleeve 17 8 carrying at apoint centrally of the shaft and easing a crown rack 180 designed to beoscillated by a suitable crown pinion 182 on a spindle 184 mounted inandcarried by the top 186 of the rheostat casing (Fig. 7 The spindlewill carry a suitable operating knob and a pointer 1'88 coiiperatingwitha'circular dial 190 on the casing top which will preferably haveimprinted there on a scale of the proportion or amount of the resistancecut-out by the contact points of the spiral ribs 17 6 at the point ofadjustment of the shaft indicated by the pointer. 188 on dial 190. 'Byoperating the spindle 184 a portion of the coil of resistance materialbetween the cont-act point of the spiralsl76 and the inner end of thecoil, is cut out of circuit, and this adjustment is utilized to providea maximum resistance for the heating circuit and a minimum heat for theburners for any desired operation. As the temperature at which effectivecauterization takes place varies with different materials, thedesirability of adjustment is obvious. 1 I V At one side of the frameand at substantially right angles'to the shaft 168, is mounted, a. studshaft 192 in suitable journals 194 supported by and-insulated from thefree ends of leaf spring arms 196 supported and'extending upwardly froma grid bar146. Fixed onthe outer end of the stud shaft and extendingfrom the outer edge of the coil of ribbon 1&7 inwardly, for a distancewhichpreferably is approximately but not fully the radial distance fromthe outer edge of the coil to the outermost contact point of the ribs176, is a sleeve 198. The inner end of the sleeve is electricallyconnected through the shaft 192 with the journals 19st which, as beforestated, are insulated from their supporting spring arms 196. From onejournal connection a suitable wire 200 leads to the heating circuitconnection 158. The sleeve 198 carries a spiral rib 202 arranged forwiping contact with the exposed upper edge of the resistance ribbon asthe shaft 192 is oscillated, the contact point of the rib progressingfrom the outer edge of the resistance ribbon inwardly. When the shaft168 has been oscillated to move the contact point of the spiral ribs 176 outwardly from the inner edge of the resistance coil, and when theshaft 192 has been oscillated to move the contact point of rib 202inwardly from the outer edge of the coil of resistance ribbon, theinterposed resistance, under certain controlled conditions of currentdistribution (2'. 0. when the machine is operated to mark) will belimited to that portion of the resistance ribbon between the contactpoint of the ribs 17 6 and the contact point of the rib 202. Underanother condition (with the machine inoperative) of current distributionand control, the resistance in the rheostat will be limited to thatportion of the resistance ribbon between the outer end of the ribbon andthe contact points of the spiral ribs 176 which move progressively fromthe inner end of the ribbon outwardly.

Similarly to the shaft 168, the stud shaft 192 is provided with a sleeve204E carrying a crown rack 206 and a spindle 208 mounted in anddepending from the top 186 carries a crown pinion 210 meshing with therack 206. The spindle 208 carries a suitable pointer 212 cooperatingwith an annular dial plate 21 i bearing indications similar to theindications upon the dial 190 and similarly designating the contactadjustment of the spiral rib 202.

The second current service connection is made at the connection 152 ofthe rheostat and thence extends by a suitable connecting wire 216 to theinner end of the coil of resistance ribbon (see Fig. 8) to which it iselectrically connected as by soldering. The electric connections at thejournals 170 are bridged. by suitable wires 218, which wires areconnected with the service current con necting wire 216 adjacent itspoint of con nection to the inner end of the coil of resistance ribbon,as at 219, Figs. 6 and 8. hen an electric motor 36 such as shown, isused to drive the pulley 32, it is included in the service circuit byextending the wire 216 across the rheostat and to the connection 160.

If a motor 36 is not used, this extension of the wire 216, connection160 and thcmotor circuit, may be omitted without affecting the heatingcircuit. In the diagrammatic showing in Fig. 8, the motor circuit isindicated in light lines and the heating circuit in heavy lines. 4

The automatic switch heretofore referred to is included in a shuntcircuit with the spiral contact rib 202, the resistance ribbon and theterminal connection 158 of the spiral rib. This switch is by preferenceautomatically operated through the movement of a machine part during amarking cycle of the driven shaft 8. In a preferred form, the switchcomprises spaced metal disks 220 carried by and rotated with the drivenshaft 8 when the one cycle clutch is operated, and insulated from eachother and from the shaft. Alined portions of the peripheries of thedisks are cut away to form an air gap 222, best seen in Figs. 1 and 2. Aseries of four spaced contact fingers 224: are mounted upon aninsulating block on the bed of the machine and extend over and normallytend to engage the periphery of the spaced contact disks 220. Theadjacent inner fingers are positioned to engage the periphery ofopposite disks and have a bridging connection 226. The end finger 224 atone side of the series of fingers is connected, as by a wire 228 withthe circuit connection 158 of the rheostat which, in turn is inconnection with the spiral rib contact 202 which forms what may becalled an auxiliary resistance cut-out.

The opposite end finger is connected in shunt with the main heatingcircuit, as in Fig. 8.

When the machine is at rest, the ends of the fingers 224: will bepositioned to extend into the air gap 222 and out of contact with theperiphery of the spaced disks 220. lVhen the treadle connected wire 52is operated to throw in the clutch, the disks 220 will be rotated, thespring fingers 224: engaging the peripheries of the disks and a bridgingconnection 226 closing the circuit through the switch during the timethat the fingers remain in contact with the disks. The closing of thecircuit through the switch will, therefore, take place upon theinitiation of the downward movement of the operating head 6 of themachine, and therefore, prior to the actual marking operation, and thecircuit will be broken subsequent to the completion of the markingoperation and prior to the time when the shaft 8 completes the singlerevolution which it receives through the one cycle clutch construction,heretofore described. The contact of the markers with the stock is onlymomentary but is of sufiicient duration successfully to cauterize thematerial.

In Fig. 8 we have shown diagrammatically one system of currentdistribution, including the rheostat connections and the connections tothe motor circuit. .The parts in this diagrammatic View corresponding tothe structural features and connections of the rheostat, heaters,switch, etc., are, of course, indicated by similar numerals.

: Referring to Fig. 8, it will be seen that a switch 232 is interposedin the service connection between the rheostat and the source of currentsupply and has its terminals connected by appropriate wires with theservice current connectors 150 and 152 of the rheostat. Suitable switchconnections are preferably inserted in the motor and heater circuits.these switches being shown in Figs. 1

. and 2 as mounted upon a switch board 234,

supported on the front of the machine bed providing a heater switch 236,anda motor switch 238 preferably with interposed fuses. Referring to thediagrammatic showing,

7 and assuming that the spindles 184 and 208 have been operated toadjust the spiral ribs 17 6 and 202 to positions of contact with theedge of the resistance coil in which portions of the coil at itsv innerand outer ends are cut out of circuit, the circuits will be as follows:

H eating circuits.The current will pass from one side of the currentsource through service connection 152; thence by way of wire 216 andbridging connection 218 to the contact points of the spiral" ribs 176with the resistance coil; thence outwardly around through the coil tothe contactpoint of the spiral rib 202, through the spiral rib and itssleeve and by way-of connection 200 to the heating circuit connection158; from this connection by wire 228 to an end finger 224 of the rotaryswitch (it being assumed that the machine is being operated: and thecircuit through the switch closed) thence through the switch and bywires 230 and 242 through the series of'units 240; thence by a wire 244to switch 236, through the switch 7 236 (assumed to be closed) and bywire 246 to the circuit terminal 154 of the rheostat, thence by wire 162across the rheostat directly to the service connection 150 and from theservice connection to the other side of the current source.

7 hen the machine is at rest, and conse quently when the shunt circuit,including the rotary switch and auxiliary cut-out formed by the spiralrib 202 isopen, the current will pass from one side of the currentsource through 7 service connection 152; thence by wire 216 and bridgingconnection 218 to the contact'point of the spiral rib 17 6;'.thencethrough and around the resist-1 ance coil 147 outwardly to theouterterminal 164 of the coil and by wire connection 166 to'the circuitterminal 156 of the rheostat; thence by wire connection'248 to theheater switch 236 (assumed to be closed) marking operation. v 11011 ofthe rheostat, per 86, constitutes the and by wire 242 from the heaterswitch,

through theseries of units 240 and by wire 244 back through the otherside of the heater switch 236 and through wire 246, rheostat terminal154 and return wire 162, to the the rheostat from whence it will extendby a suitable conductor 250 to one side of a switch 238, through theswitch to one side of the motor 36 by wire 254; thence from the otherSide of the motor 36 through wire'256 through the other side of theswitch 238; and thence by wire 258 to connect with the wire 246 of theheating circuit from which point the current flows back by wire 246 torheostat contact 154, by return wire162 to service connection 150 andthence through switch 232 to the opposite side of the current source.Suitable fuses 251 may be placed'in the motor circuit. a V

Manifestly, the motor circuit may be operated entirely independently ofthe heating circuit and the motor circuit connections resistancemaybe'ohmic, or inductive, or

both and the rheostat may be of like character. l e

As we have before stated, difierent materials will burn or cauterize atdifferent temperatures. The adjustment provided forby the describedrheostat construction provides for variable heat points both as tonormal heat and the increased heat during the The specificconstrucsubject-matter of an application Serial No. 97,913, filed May16, 1916, by Arthur W. Brice. Such features of the mechanical operatingand adjusting mechanism of the disclosed machine as are not specificallydescribed or specifically claimed as of the present invention,constitute part of the inventions described and claimed in LettersPatent of the United 'States, No. 1,191,965,

granted July 25, 1916, upon application of l/Villiam Hamann, and in theapplication filed by William Hamann April 8, 1916,

Serial No. 89,968, respectively.

Having fully described our invention, what we claim as new and desire tosecure by Letters Patent of the United States is 1. In a shoe uppermarking machine, a a marker element of electrical resistance materialarranged to be heated to cauterizing temperature by the passage of anelectric current, and an electric heating circuit for the marker elementincluding means constructed and arranged to heat said element to anormal cauterizing temperature and automatically to produce an increasein the heat of the marking element effective during substantially theperiod said element is in contact with the work.

2. In a shoe upper marking machine, a marker element, or electricalresistance material arranged to be heated to cauterizing temperature bythe passage of an electric current, a work support, means for effectingrelative movement between the marker element and work support toposition the marker element to contact with the work, and an electricheating circuit for the marker element, including means arranged toprovide a minimum heating current, with means operative automatically toproduce an increase in the heating current effective duringsubstantially the period of contact of the element with the work.

3. In a shoe upper marking machine, a marker element of electricalresistance mate.- arranged to be heated to cauterizing temperature bythe passage of an electric current, a work support, means for effectingrelative movement between the marker ele ment and work support toposition the marker element to engage the shoe material, and an electricheating circuit for the marker element, including an interposedresistance arranged for adjustment to provide a predetermined maximumresistance and minimum heating current, with means operativeautomatically to produce a decrease in the resistance ano correspondingincrease in the heating current effective during the period the markerelement is positioned to contact with the shoe material.

l. in a shoe upper marking machine, a

' er element of electrical resistance mate- (ranged to be heated tocauterizing ature by the passage of an electric it. a work support,means for effecting e movement between the marker ele- P.3d work supportto position the men;

.rker element to engage the shoe material,

ic heating circuit for the marker element; including an interposedrheostat ha vi n means to provide variable maximum --.ncewith resultantminimum heating current and having means for reducing the rcsistai'iceand correspondingly increasing the heating current operative uponrelative movement between the marker element and work support.

5. In a shoe upper marking machine, a marker element of electricallyresistant material arranged to be heated to cauterizing temperature bythe passage of an electric current, a work support, means for efi'ectiugrelative movement between the marker element and work support toposition the marker element for contact with supported work, and anelectric heating circuit for the marker element including meansconstruct ed and arranged to heat said element to a normal cauterizingtemperature and operative upon relative n1o=;cmcnt between the markerelement and work support automatically to produce an increase in theheat point 01 the marker element effective prior to and during theperiod said element is positioned for contact with the work.

6. In a shoe upper marking machine, a marker element of electricallyresistant material arranged to be heated to cauterizing temperature bythe passage or. an electric current, a work support, means for effectingrelative movement between the marker element and work support toposition the marker element to engage the shoe material, and an electricheating circuit for the marker element including an interposed resstance arranged to provide a maximum resistance and minimum heatingcurrent, with means operative upon relative movement between the markerelement and work support automatically to produce a decrease in theresistance and an increase in the heating current prior to and duringthe period the marker element is positioned to contact with the shoematerial.

7. In a shoe upper marking machine, a marker element of electricallyresistant material arranged to be heated to cauterizing temperature bythe passage of an electric current, a worg support, means for efi'ectingrelative movement between said support and said marker element to effectmomentary contact of the marker element with supported work, an electricheating circuit for said marker element including means constructed andarranged electrically to heat the marker element to a normal cauterizingtemperature while inoperative and automatically to produce an increasein the heat of ti e marker element effective during the period of itscontact with the supported work.

8. In a shoe upper marking machine, a marker element of electricallyresistant material arranged to be heated to cauterizing temperature bythe passage of an electric current, a work support, means for effectingrelative movement between said support and said marker element to eiTectmomentary contact of the marker element with supported. work, anelectric heating circuit for said marker element including meansconstructed and arranged electrically to heat the marker element to anormal cauterizing temperature while inoperative and automatically toproduce an increase in the heat of the marker element upon relativemovement of the support and marker element and prior to and during theperiod of its contact with the supported work.

9. In a shoe upper marking machine, a series of marking devices, eachhaving a marking member or element of electrically resistant materialarranged to be heated to cauterizing temperature by the passage of anelectric current, electrical connections between the series ot markingmembers, work support, means for effecting relative movement betweensaid support and the series of marking devices to efi'ect momentarycontact of the marking members with the supportedwork, an electricheating circuit for said marking members, including means constructedand arranged electrically to heat the marking members to normalcauterizing temperature while inoperative, and automatically to producean increase in the heat of the marking members eft'ective during theperiod of contact with the supported work.

10. In a shoe upper marking machine, a marker element of electricallyresistant material arranged to be heated to cauterizing temperature bythe passage of an electric current, a work support, means for efi'ectingrelative movement between said support and marker element to effectmomentary contact of the marker element with the supported work, anelectric heating circuit for said marker element, including aninterposed resistance arranged to provide a maximum resistance andmininiium heating current, with means operative automatically to producea decrease in the resistance and an increase in the heating currenteffective during the period of contact of the marker element with thesupported work.

11. In a shoe upper marking machine, a

marker element of elect *ically resistant material arranged to be heatedto caut-erizing temperature by the passage of an electric current, awork support, means for effecting relative movement between said supportand marker element to effect momentarycontact of the marker element withthe supported work, an electric heating circuit for said marker element,including an interposed resistance arranged for adjustment to pro vide apredetermined minimum heating current, with means operativeautomatically to produce a decrease in the resistance and acorresponding increase in the heating current effective during theperiod of contact of the marker element with the supported work.

current, a work support, means for effecting.

relative movement between said support and marker element to effectmomentary contact of the marker element with the supported work, anelectric heating circuit for said marker element, including aninterposed rheostat having adjustment means determinately to vary themaximum resistance and minimum current for normal cauterizing heat, withmeans arranged for adjustment .determinately to decrease the resistanceand operative by relative movement between the marker element andsupport automatically to produce a decrease in the resistance and anincrease in the heating currentieftective during the period of momentarycontact of the marker element with the work.

13. Ina shoe upper marking machine, a

series of marking devices each having a marker element of electricallyresistant material arranged to be heated to cz'iuterizing temperature bythe passage of an electric current, electrical connections between theseries of marker elements, a work support, means for effecting relativemovement between the support and the series of marker elements toposition said marker elements for contact with supported work, anelectrical heating circuit including means constructed and arrangedelectrically to heat the marker elements of said series of ele ments toa normal cauterizing temperature and automatically to produce anincrease in the heat of the marker elements effective during the periodsaid elements are positioned for contact with the work.

1%. In a shoe upper marking machine, a

series of marking devices each having a marker element of electricallyresistant material arranged to be heated to cauterizing temperature bythe passage of an electric current, electrical connections between theseries of marker elements, a work sup port, means for effecting relativemovement between the support and the series of marker elements toposition said marker elements for contact with supported work, anelectric heating circuit including means constructed and arrangedelectrically to mat the marker elements of said series of elements to anormal cauterizing temperature and automatically to produce an increasein the heat of the marker elements effective during relative movement ofthe support and marker elements and prior to and during the period saidelements are positioned for contact with the work.

15. In a shoe upper marking machine, a series of marking devices eachhaving a marker element of electrically resistant matcrial arrangei'l tobe heated to eauterizing temperature by the passage of an electriccurrent, electrical connections between the series of marker elements, awork support, means for effecting relative movement be tween the supportand the series of marker elements to position said marker elements forcontact with supported work, an electric heating circuit including aninterposed resistance arranged to provide a maximum resistance and aminimum heating current, with means operative automatically to produce adecrease in the resistance and a corresponding increase in the heatingcurrent effective durin the period of contact of the marker elementswith the supported work.

16. In a. shoe upper marking machine, a series of markin devices eachhaving a marker element of electrically resistant material arranged tobe heated to cauterizing temperature by the passa e of an electriccurrent, electrical connections between the series of marker elements, awork support, means ror effecting relative movement between the supportand the series of marker elements to position said marker elements forcontact with supported work, an electric heating circuit including arheostat having adjustment means arranged to provide a predeterminedmaximum resistance and having means operative upon relative movementbetween the series of marker elements and the work support automaticallyto produce a decrease in the resistance and a cor responding increase inthe heating current effective during the period of contact between themarker elements and the supported work.

17. In a shoe upper marking machine, a series of marking devices eachhaving a marker element of electrically resistant material arranged tobe heated to cauterizing temperature by the passage of an electriccurrent, electrical connections between the series of marker elements, awork support, means for effecting relative movement between the supportand the series of marker elements to position said marker elements forcontact with supported work, an electric heating circuit including aninterposed resistance arranged to provide a predetermined maximumresistance and minimum heating current, with a shunt circuit includingsaid interposed resistance automatically closed by relative movement ofthe work support and markers momentarily to produce a decrease in theinterposed resistance and a corresponding increase in the heatingcurrent effective during the period the marker elements are positionedfor contact with the work.

18. In a shoe upper marking machine, a series of marking devices eachhaving a marker element of electrically resistant material arranged tobe heated to cauterizing temperature by the passage of electric current,series electrical connections between the series of marker elements, awork support, means for effecting relative movement between the supportand the series of marker elements to position said marker elements forcontact with supported work, an electric heating circuit including meansconstructed and arranged electrically to heat said series of elements toa normal cauterizing temperature and automatically to pro-- duce anincrease in the heat of the marker elements effective during the periodsaid elements are positioned for contact with the work.

19. In a shoe upper marking machine, a series of marking devices eachhaving a marker element of electrically resistant ma terial arranged tobe heated to cauterizing temperature by the passage of an electriccurrent, said marker elements being electrically connected in series, awork support, means for effecting relative movement between the supportand the series of marker elements to position said marker elements forcontact with supported work, an electric heating circuit for the markerelements including an interposed resistance arranged for adjustment toprovide predetermined maximum resistance with minimum heating current,and having means operative upon relative movement between the markerelements and work support automatically to produce a determinatedecrease in the resist ance and a corresponding increase in the heatingcurrent effective during the period of contact between the markerelements and the supported work.

20. An upper marking machine comprising, in combination, a markerelement arranged to be electrically heated to cauterizing temperature, awork support, means for effecting relative movement between the markerelement and said support to position the marker elements to engage thesurface of supported work, including an intermittently operated rotaryshaft and a reciprocating connection from said shaft, an electricheating circuit for said marker element including a resistance meansproviding a minimum current and normal heat for the marker elements anda normally open shunt circuit in electrical connection with theresistance means and including a circuit closer operated through markeroperating rotation of the shaft to close the shunt circuit and produce areduction of the interposed resistance effective during the markingoperation.

21. An upper marking machine comprising, in combination, a series ofcauterizing marker elements arranged to be electrically heated andelectrically interconnected, work supporting means, mechanismconstructed and arranged to efiect relative movement between the seriesof marker elements and the work supporting means to position the seriesof marker elements for contact w th supported work, an electric heatingcircuit for the seriesof marker elements including a resistance elementarranged determinately to provide a maximum resistance and a normalheating current, and a normally open shunt circuit in electricalconnection with the resistance element and including a circuit closeractuated by marker-operating movement of said mechanism to close theshunt circuit to produce a reduction in the resistance ofiered by theresistance element and an increase inthe heating current for the markerelements efiective during the marking operation.

An upper marking machine comprising, in combination, a plurality ofmarker elements arranged to be electrically heated to cauterizingvtemperature and having electrical interconnections, work supportingmeans, mechanism constructed and arranged to effect relative movementbetween the plurality of marker elements and the supporting means toposition the plurality of marker elements for contact with supportedwork and including an intermittently rotatable shaft and a reciprocatingconnection therefrom, an electric heating circuit for said plu rality ofmarker elements including a rheostat providing a predetermined normalheating current, and a normally open shunt circuit in electricalconnection with the rheost-at and including a switch actuated bymarker-operating rotation of the shaft to close the shunt circuit andautomatically to produce a decrease in the rheostat resistance and anincrease in the heat of the marker elements effective during the markingoperation.

23. An upper marking machine comprising, in combination, a series ofcauterizing marker elements arranged to be electrically heated andelectrically interconnected, work supporting means, mechanismconstructed and arranged to effect relative movement between the seriesof marker elements and the work supporting means to effectmomentarycontact of" the marker elements with supported Work, an electric heatingcircuit for the series of marker elements including a resistance elementarranged determinately to provide a maximum resistance and a normalheating current, and a normally open shunt circuit in electricalconnection with the resistance element to bridge a portion of theresistance for increasing the heating current and including a circuitcloser actuated by marker-operating movement of said mechanism to closethe shunt circuit to produce a production in the resistance offered bythe resistance element and an increase in the heating current for themarker elements effective during the marking operation.

24. An upper marking'machine having, in

combination, a work supporting means, a

porting means to position said markers for simultaneouscontact withsupported work,

including an intermittently rotated shaft and a reciprocatory markeroperating means operated by rotation of the shaft, an electric heatingcircuit for the series of cauterizing markers including a main circuitwith an interposed resistance element providing a normal heating currentwith maximum resistance, and a normally open shunt circuit overlappingin part the main circuit and providing, when closed, a decreasedresistance and increased heating current, a switch operated through saidrotary shaft and arranged automatically to break said shunt circuit whenthe marker elements are inoperative and actuated by the rotation of theshaft automatically to close the shunt circuit to produce an increase inthe heating current effective during the contact of the markers with thework.

An uppe 1 marking machine having, in combination, a work supportingmeans, aserics of cauterizing marker elements of resistance materialmounted for movement toward said work supporting means and arranged to.be electrically heated by the passage of an electric current, saidseries of marker elements being electrically interconnected, means tomove said series of marker elements toward and from said work supportingmeans to efiect simultaneous and momentary contact of the markers withsupported work, including an intermittently rotated shaft and areciprocatory marker op erating means operated by rotation of the shaft,an electric heating circuit for the series of cauterizing markersincluding a mam circuit with an interposed resistance element providinga normal heating current with maximum resistance, and a normally openshunt circuit overlapping in part the mam circuit and providing, whenclosed, a decreased resistance and increased heating current, a switchoperated through said rotary shaft and arranged automatically to breaksaid shunt circuit when the marker elements are inoperative and actuatedby the rotation of the shaft automatically to close the shunt circuit toprovide an increase in the heating current effective prior to and duringthe contact of the markers with the work. I

26. An upper marking machine having, in combination, a work supportingmeans, a series of cauterizing marker elements of resistance materialmounted for movement toward said work supporting means and ar ranged tobe elect *ically heated by the passage of an electric current, saidseries of marker elements being electrically interconnected, means tomove said series of marker elements toward and from said work supportingmeans to effect simultaneous and momentary contact of the markers withsupported work including an intermittently rotated shaft-and areciprocatory marker operatin means operated by rotation of the shaft,an electric heating circuit for the series of cauterizing markersincluding a main circuit with an interposed resistance element providinga normal heating current with maximum resistance, and a normally openshunt circuit overlapping in part the main circuit and providing, whenclosed, a decreased resistance and increased heating current, a rotaryswitch carried by and rotating with said shaft and arrangedautomatically to break said shunt circuit when the marker elements areinoperative and actuated by the rotation of the shaft automatically toclose the shunt circuit to produce an increase in the heating currenteffective prior to and during the contact of the markers with the work.

27. In an upper marking machine, a marking device comprising an arm,insulated electrical conductors carried thereby having contactterminals, and a member detachably connected with the arm and carrying acanterizing marker having circuit completing contacts arranged to engagesaid terminals when said member is attached to the arm.

28. In an upper marking machine, a marking device comprising an arm,insulated electrical conductors extending longitudinally of the arm andhaving contact terminals adjacent to the end of the arm, and aninsulating head arranged to be detachably secured to the end of the armand carrying a cauterizing marker having circuit completing contactsarranged to engage said terminal contacts when the head is secured tothe end of the arm;

29. In an upper marking machine, a marking device comprising an arm,insulated electrical conductors extending longitudinally of the arm andhaving contact terminals adjacent to the end of the arm, and aninsulating head arranged to be detachably secured to the end of the armand having a detachable cauterizing marker with separate circuitcompleting contacts arranged to engage said terminal contacts when thehead is secured to the end of the arm.

30. In an upper marking machine, a marking device comprising an arm,insulated electrical conductors carried thereby having contactterminals, and an insulating member detachably secured to said arm andcarrying a cauterizing wire marker provided with.

contacts arranged to engage said contact terminals and complete thecircuit when the insulating member is secured to the arm.

31. In an upper marking machine, a marking device comprising a hollowarm, insulated electrical conductors extending through said arm withcontact terminals at the end of the arm, and an insulating head arrangedto be connected to the end of the arm and having a cauterizing markerpro vided with contacts arranged to en age said contact terminals whenthe head is connected to the arm. V

32. In an uppermarking machine, a marking device comprising a tubulararm, positive and negative electrical conductors extending through thearm and insulated from each other and from the arm and with exposedterminal contacts, and a head of insulating material arranged to bedetachably clampedto the end of the arm and carrying a cauterizingmarker having circuit completing contacts arranged to electricallyengage said terminal contacts when the head is elamped to the end of thearm.

33. In an upper marking machine, a marking device comprising a tubulararm, positive and negative electrical conductors extending through thearm and insulated from each other and from the arm and with exposedterminal contacts, and a head of in sulating material arranged to bedetachably clamped to the end of the arm and carrying a loop ofresistance material forming a cauterizing marker and having separatecircuit completing contacts arranged electrically to engage saidterminal contacts when the head is clamped to the end of the tubulararm.

34. In an upper marking machine, amarking device comprising a tubulararm, insu ating plugs closing opposite ends of the arm, positive andnegative electrical con- "ductors extending through said plugs andthrough the arm and insulated from each other and from the arm, theterminal ends of said conductors extending through the plug at the endof the arm having exposed contact terminals, and a cauterizing headdetachably connected with the plug and carrying a marker of resistancematerial having circuit completing contacts cooperating with theconductor contact terminals.

35. In a machine for marking shoe uppers, in combination, a work supportand a marking member mounted for relative workmarking movement, acauterizing marker comprising an individual strand of relatively finewire carried by and outstanding from said member, and electricalconnections on said member for the ends of said cauteriz ing marker. v

36. In a machine for marking shoe uppers, in combination, a work supportand a marking member mounted for relative workmarlting movement, acauteriiing marker carried by and outstanding from said memher andcomprising a loop of relatively fine wire having its ends mounted onsaid memher and provided with separate electrical contacts, andelectrical connections on said of relatively fine wireprojeeting fromsaid" member and bent to form a relatively short linear contact surfaceto engage supported work, and electric circuit connections carried bythe marking membenfor the ends of said cauterizing wire.

38. In a machine for marking the locations of buttonholes on'shoeuppers, in combination, a work support and a marking member arranged forrelative work-marking movement, said markin member having an outstandingloop of relativelv-fine wire providing a short linear cauterizingsurface and having its ends mounted on saidmarkin member and providedwith spaced contact terminals, and electrical circuit connections forsaid terminals carried bv said marking member. 7

39. In amachine for marking shoe uppers, in combination, a work supportand a'marking member arranged for relative workmarking movement,electric circuit connections carried by said member having terminalcontacts, ahead of insulating material carried by said marking memberhaving coi'nplel'nental recesses therein. and aloo'p of relatively finecauterizing wire extending from said head and having relatively largespaced ends seating in saidrecesses' and in electrical connection withsaid terminal contacts. I 7

40. In a; machine for marking shoe uppers, in combination, a worksupport and a marking' member arranged for relative workmarkingmovement, electric circuit connections carried'by said member havingterminal contacts, a block of insulating mate rial attached to saidmember and having recesses in its opposite faces, and" a loop ofcauterl'zmg w1re havmg spaced terminal contact plates detachablv seatingin said recesses and in electrical connection with .ing temperature andto be electrically connected to a common current source and con-'structed and arrangedto operate simultaneously upon a plurality ofpieces of stock;

? with means to support shoe stock between the opposedmarkers.

42. In an upper marking machine, a mark ing device comprising opposedarms carrying opposed markers constructed and arranged to beelectrically heated simultane ously to cauterizing temperature withseries electrical connections between said'markers and a common currentsource, and means to support shoe material between the op posed markers.

43. In an upper marking machine, a marking device comprising opposedarms provided with electrical conductors having terminal contacts andwith detachable cauteri zing markers having circuit completing cont-actsarranged to engage said terminal contacts and arranged to beheated toc'auteri zing temperature by the passage of an electric currenttherethrough, and meansto support shoe material between the markers ofthe opposed arms. 7 V

44. In an upper marking machine, a marking device comprising opposedarms having bores extending therethrough with electrical conductorsconnected in series extending through said bores and having exposed contact terminals, opposed markers of electri cally resistant materialdetachablv connected to said arms with circuit completing contactsarranged to engage said contact terminals, and means to support shoematerial between the opposed markers.

, 45. In an upper marking machine, amarkin'g' device comprising opposedarms carrying opposed markers constructed and arranged to beelectrically heated to cauterizin'g temperature and to be electricallyconnected to a common current source, with means to support the materialbetween the opposed m'arkers and means to guard the material from theheated markers.

46. In an upper marking machine, a marking device compris'azing opposedarms carrying opposed markers constructed and arranged to beelectrically heated to cauterizing temperature and to be electricallyconnected to a common current source, with means to support shoematerial between the opposed markers and guards to prevent contact ofthe, material with the markers arranged to be in'operatirely positionedupon relative movement of the marker arms toward each other.

5L7. In an upper markingmachine, amarking device comprising opposedupper ant lower arms carrying opposed markers constructed and arrangedto be electrically heated to cauterizing temperature, means to move theupper arm towardthe lower arm, a fixed upper and a movable lower guardcarried by the stationary lower arm to prevent 7 contact ofthe work withthe heated markers WlleIlJH inoperative marking position, said guardshavmg openings therethrough for the passage of the markers, with meansto import work between the upper and lower narkers and guards, and wltnmeans to move

